Remotely actuated adjustable choke valve and method for using same

The valve comprises an elongated valve body having a process fluid inlet and a process fluid outlet. An elongated valve stem is disposed within the valve body for axial displacement relative to adjust a rate of process fluid flow between the fluid inlet and fluid outlet as a function of a relative a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MARK ALAN SCHNATZMEYER, JOSEPH L. PEARCE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SIPHONS WEAPONS
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Beschreibung
Zusammenfassung:	The valve comprises an elongated valve body having a process fluid inlet and a process fluid outlet. An elongated valve stem is disposed within the valve body for axial displacement relative to adjust a rate of process fluid flow between the fluid inlet and fluid outlet as a function of a relative axial position of the valve stem with respect to the valve body. A cam is disposed within the valve body coupling the valve body and valve stem. The cam provides axial displacement positions to place the valve stem at a selected one of relative axial positions with respect to the valve body. The valve body has a control fluid pressure port for allowing a control fluid pressure to be introduced into and released from the valve to reciprocate the valve stem axially with respect to the valve body between cocked and set positions.